How do you upload/download files from Blob Storage in .NET?

Short answer: Use Azure.Storage.Blobs NuGet package. Upload example: var blobServiceClient = new BlobServiceClient(connectionString); var containerClient = blobServiceClient.GetBlobContainerClient("mycontainer"); var blobClient = containerClient.GetBlobClient("file.txt"); using var fileStream = File.OpenRead("localfile.txt"); await blobClient.UploadAsync(fileStream, overwrite: true); Download example: var downloadPath =…

Explain a bit more

"downloaded.txt"; await blobClient.DownloadToAsync(downloadPath);

Example code

Use Azure.Storage.Blobs NuGet package. Upload example: var blobServiceClient = new BlobServiceClient(connectionString);
var containerClient = blobServiceClient.GetBlobContainerClient("mycontainer"); var blobClient = containerClient.GetBlobClient("file.txt");
using var fileStream = File.OpenRead("localfile.txt");
await blobClient.UploadAsync(fileStream, overwrite: true); Download example: var downloadPath = "downloaded.txt";
await blobClient.DownloadToAsync(downloadPath);

Real-world example (ShopNest)

Product images upload to Azure Blob Storage; the DB only stores the blob URL.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.